Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate
2011-05-24
2011-05-24
Fuqua, Shawntina (Department: 3742)
Electric heating
Heating devices
With heater-unit housing, casing, or support means
C219S536000, C219S537000, C219S535000, C219S541000, C219S552000, C219S476000, C219S477000, C219S478000, C338S304000, C338S305000, C338S319000, C338S320000, C338S299000
Reexamination Certificate
active
07947932
ABSTRACT:
An open coil electrical resistance heater uses a number of offset insulators to support the coil of the heater. The offset insulators configure the run of coil in a sinusoidal shape to hold the insulators in a more secure manner and reduce vibration and noise generation during heat operation. The sinusoidal configuration of the coil also reduces the problem of shadowing of portions of the resistance wire coil.
REFERENCES:
patent: 4268742 (1981-05-01), Cottrell et al.
patent: 5329098 (1994-07-01), Howard et al.
patent: 5895597 (1999-04-01), Sherrill
patent: 5925273 (1999-07-01), Sherrill
patent: 7075043 (2006-07-01), Howard et al.
patent: 7154072 (2006-12-01), Sherrill et al.
Ridley R. Devin
Sherrill James L.
Clark & Brody
Fuqua Shawntina
Tutco, Inc.
LandOfFree
Open coil electric resistance heater with offset coil... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Open coil electric resistance heater with offset coil..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Open coil electric resistance heater with offset coil... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2620499